AWS Serverless Cost Calculator

Use case: a web application

Serverless architecture out-of-the-box: auto-scalable by design - up to date, distributed, async & secured systems - user & auth mgt - data & file storage - real-time updates - monitoring - workflow mgt

Presentation article: https://medium.com/p/2f8a52fc6a68 Architecture source: https://medium.com/p/40f252cd0ecb

Variables Result

Select below a pre-defined type of application for general cost estimation eu-west-1

Traffic High Cost / Month Pre-defined Custom

Type Ecommerce Total $1,693.2 $92.4

Cost / Session $0.001366 $0.000085

Or play around with custom fields for a refined estimation

User Variables Pre-defined Custom Detail per AWS service

# of Sessions / Day 40,000 35,000 API G. REST $147.6 $7.6

# of Sessions / User / Month 5.00 150.00 API G. WS $17.7 $0.0

% of Authenticated Users 30.00% 100.00% Lambda $199.1 $0.8

# of Loaded Assets (Image, Video, Files) / Session 100.00 10.00 DynamoDB $54.8 $6.7

# of Uploaded Files / Session 0.10 1.00 Cognito $134.2 $0.0

Average Size of Uploaded Files (MB) 0.00 1.00 EventBridge $9.9 $2.2

# of Pages Visited / Session 30.00 1.00 CloudFront $762.3 $63.6

# of Saved User Actions (ex: comment an article) / Session 4.00 1.00 S3 $0.7 $10.3 Owner: Xavier Lefèvre

# of Complex Workflows (ex: e-commerce funnel) / Session 1.00 0.00 SQS $0.0 $0.0 Twitter: @xavi_lefevre

CloudWatch $57.2 $1.2

These are technical variables, trust us if you don't know much about serverless Step Functions $309.9 $0.0

Architecture Variables Pre-defined Custom

API Reads # of Lambdas Triggered / Pages Visited 1 1

# of DB Items Read / Pages Visited 1 1

API Writes # of Lambdas Triggered / Saved Actions 3 1 Legend

# of DB Items Written / Saved Actions 1 1 Pre-defined scenarios, when selecting dropdowns

Workflows # of Lambda Steps / Workflow 5 5

# of DB Items Written / Workflow 2 2 Custom scenario, when directly replacing variables

# of DB Items Read / Workflow 2 2

Realtime # of WebSocket Messages / Minute / Session 1 1 Modifiable cells

# of Minutes / Session 10 0

# of DB Items Read / Message 1 1

⚠️ High traffics have discounted prices not taken into account in this calculator

⚠️ Data transfer between regions are not taken into account